<!doctype html> <html> <head>

 <meta charset="utf-8">
 <style>
 .twentytwenty-wrapper {
   -webkit-touch-callout: none; /* iOS Safari */
     -webkit-user-select: none; /* Safari */
      -khtml-user-select: none; /* Konqueror HTML */
        -moz-user-select: none; /* Firefox */
         -ms-user-select: none; /* Internet Explorer/Edge */
             user-select: none; /* Non-prefixed version, currently
                                   supported by Chrome and Opera */
 }
 .twentytwenty-overlay {
   display: none;
 }
 </style>
 <script>
 $(function(){
   $('.twentytwenty-container').twentytwenty();
 });
 </script>

</head> <body>

   <img src="" />
   <img src="" />

</body> </html>